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MySQL: Sort GROUP_CONCAT values
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Sure, see http://dev.mysql.com/doc/refman/...tions.html#function_group-concat:
SELECT student_name,
GROUP_CONCAT(DISTINCT test_score ORDER BY test_score DESC SEPARATOR ' ')
FROM student
GROUP BY student_name;
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How to comment in Vim's config files: “.vimrc”?
How do I add a comment in Vim's configuration files, like .vimrc?
3 Answers
3
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Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
...remember the old windows.ini file? :-)).
If you can, I would prefer and recommend using your own configuration sections - with .NET 2.0, it's really become quite easy, That way, you can:
a) Define your configuration settings in code and have them type-safe
and checked
b) You can cleanly separat...
Gradle - getting the latest release version of a dependency
...precated) but it does support Ivy's latest.release. However, the general recommendation is to build against exact versions. Otherwise, the build can become a lottery.
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How to validate inputs dynamically created using ng-repeat, ng-show (angular)
... Nesting forms isnt considered to be valid HTML stackoverflow.com/questions/379610/can-you-nest-html-forms Is angular planning a fix for this?
– Blowsie
Dec 9 '13 at 12:05
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How do I request a file but not save it with Wget? [closed]
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what do the ampersand and greater than do in this command? can you just pipe the output to /dev/null ... wget -qO- | /dev/null ... ?
– T. Brian Jones
Mar 13 '12 at 20:22
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Visually managing MongoDB documents and collections [closed]
... test documents. While I don't have too much trouble using the JSON-based command-line tools, it gets extremely tedious to have to keep searching for documents, copy-and-pasting OIDs, etc., especially from a command prompt window (ever tried to "mark" text that wraps multiple lines?)
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Efficient paging in SQLite with millions of records
... multiple sort columns (and SQLite 3.15 or later), you can use a row value comparison for this:
SELECT *
FROM MyTable
WHERE (SomeColumn, OtherColumn) > (LastSome, LastOther)
ORDER BY SomeColumn, OtherColumn
LIMIT 100;
s...
Is it possible to display inline images from html in an Android TextView?
...lay as resources in your application the your ImageGetter implementation becomes a lot simpler. You could get away with something like:
private class ImageGetter implements Html.ImageGetter {
public Drawable getDrawable(String source) {
int id;
if (source.equals("stack.jpg"))...
Database Design for Tagging
...ion" operation. This article covers relational division in concise and yet comprehendible way.
About performance: A bitmap-based approach intuitively sounds like it will suit the situation well. However, I'm not convinced it's a good idea to implement bitmap indexing "manually", like digiguru sugge...